Exhibit 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-57533, 333-49847, 333-70195, 333-83949 and 333-94841) and on Form S-8 (No. 333-52479) of Cheniere Energy, Inc. of our report dated March 7, 2003 relating to the consolidated financial statements of Cheniere Energy, Inc., which appears in this Annual Report on Form 10-K on page 39. MANN FRANKFORT STEIN & LIPP CPAs, L.L.P. Houston, Texas March 26, 2003